| Town | Beach Name | State-of-the-art test | Testing Frequency | Results Posted at Beach | Source |
| yes/No | yes/No | ||||
| Barnstable | Hyannis | yes | once every 2 weeks | yes | NRDC '99 |
| Bourne | Monument Beach | yes | once every 2 weeks | yes | DPH '00 |
| Bourne | Barlow's Landing Beach | yes | once every 2 weeks | DPH '00 | |
| Bourne | Picture Lake | yes | once every 2 weeks | DPH '00 | |
| Brewster | Brewster Beach | yes | once a week | yes | NRDC '99 |
| Chatham | Goose Pond | yes | once every 2 weeks | No | DPH '00 |
| Chatham | Waterview | yes | once every 2 weeks | No | DPH '00 |
| Chatham | Pell's Cottage | yes | once every 2 weeks | No | DPH '00 |
| Chatham | Lake Shore Drive Association | yes | once every 2 weeks | No | DPH '00 |
| Dennis | Chapin Beach | yes | once every 2 weeks | yes | PIRG '00 |
| Eastham | Coast Guard Beach (National Seashore) | yes | once every 2 weeks | yes | PIRG '00 |
| Falmouth | Surf Drive Beach | yes | once every 2 weeks | yes | PIRG '00 |
| Falmouth | yes | once every 2 weeks | yes | NRDC '99 | |
| Harwich | Aunt Edie | yes | once every 2 weeks | yes | DPH '00 |
| Harwich | Bucks Pond | yes | once every 2 weeks | yes | DPH '00 |
| Harwich | Hinckley | yes | once every 2 weeks | yes | DPH '00 |
| Harwich | Flax Pond | yes | once every 2 weeks | yes | DPH '00 |
| Harwich | Sand Pond | yes | once every 2 weeks | yes | DPH '00 |
| Harwich | Long Pond | yes | once every 2 weeks | yes | DPH '00 |
| Harwich | Seymour | yes | once every 2 weeks | yes | DPH '00 |
| Harwich | Walkers | yes | once every 2 weeks | yes | DPH '00 |
| Harwich | Skinnequit Beach | yes | once every 2 weeks | yes | DPH '00 |
| Mashpee | South Cape Beach - Popponesset Beach | No | once every 2 weeks | yes | NRDC '99 |
| Mashpee | Ashumut | No | once every 2 weeks | yes | DPH '00 |
| Mashpee | John's Pond | No | once every 2 weeks | yes | DPH '00 |
| Mashpee | Santuit Pond | No | once every 2 weeks | yes | DPH '00 |
| Nantucket | Childrens Beach | yes | once a week | yes | NRDC '99 |
| Nantucket | Cisco Beach | yes | once a week | NRDC '99 | |
| Nantucket | Dionis Beach | yes | once a week | NRDC '99 | |
| Nantucket | Jette's | yes | once a week | No | NRDC '99 |
| Nantucket | Madaket Beach | yes | once a week | yes | NRDC '99 |
| Nantucket | Siasconset Beach | yes | once a week | No | NRDC '99 |
| Nantucket | Surfside Beach | yes | once a week | yes | NRDC '99 |
| Nantucket | Washington Street Beach | yes | once a week | NRDC '99 | |
| Oak Bluffs | Oak Bluffs Town Beach | No | once a month | yes | PIRG '00 |
| Orleans | Nauset Beach | yes | once every 2 weeks | No | PIRG '00 |
| Provincetown | Provincetown Beach | yes | once every 2 weeks | yes | PIRG '00 |
| Sandwich | Snake Pond | No | once every 2 weeks | No | DPH '00 |
| Wellfleet | Gull Pond | No | once every 2 weeks | yes | NRDC '99 |
| Wellfleet | Great Pond | No | once every 2 weeks | yes | NRDC'98 |
| Wellfleet | Long Pond | No | once every 2 weeks | yes | DPH '00 |
| Wellfleet | Mayo/Indian Neck | No | once every 2 weeks | yes | NRDC '99 |
| Yarmouth | yes | once every 2 weeks | yes | PIRG '00 | |
| Truro | Cape Cod Nat'l Seashore | No | once every 2 weeks | yes | PIRG '00 |